package com.atguigu.lease.web.app.custom.interceptor;

import com.atguigu.lease.common.context.LoginUser;
import com.atguigu.lease.common.context.LoginUserContext;
import com.atguigu.lease.common.exception.LeaseException;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.utils.JwtUtil;
import io.jsonwebtoken.Claims;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

@Component
public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String token = request.getHeader("access_token");
        if (token==null){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_AUTH);
        }
        else {
            Claims claims = JwtUtil.parseToken(token);
            Long userId = claims.get("userId", Long.class);
            String username = claims.get("username", String.class);
            LoginUser loginUser=new LoginUser(userId,username);
            if (LoginUserContext.getLoginUser()==null){
                LoginUserContext.setLoginUser(loginUser);
            }
        }
        return true;
    }
}
